Answer:
f=21-16, 5
Step-by-step explanation:
Just subtract 16 from both sides to get 5 as the solution
If she has $20 and saves $2 for every $8 she saves $4.
Answer:
Step-by-step explanation:
Could you tell me which object we are finding the area from?
Answer:
She must make a score of 42 in the final exam to obtain an average of 80.
Step-by-step explanation:
Hi there!
Let x be the score of the final exam, the equation will be as follows (remember that the score of the final counts double):
(82 + 79 + 75 + 2x)/4 = 80
Let´s solve the equation for x multiplying each side of the equation be 4:
82 + 79 +75 + 2x = 320
Substract 82, 79 and 75 to both sides of the equation:
2x = 320 - 82 - 79 -75
2x = 84
x = 84/2
x = 42
She must make a score of 42 in the final exam to obtain an average of 80.
Have a nice day!
Answer: sqrt 13
Step-by-step explanation: AP EX approved